I hate woodworking. I want tolerances to 0.001"... METAL FOREVER!
LOL, Smack a piece of wood with a hammer and there goes 0.01, and your worried about 0.001? Actually I received my tolerance training at a shop that specialized in cigar humidors. The cover to the box, was wood to wood, no other sealing medium. The final test before shipping was to drop/close the cover, and it would soft seal from the escaping air. If it clacked we could try a few adjustments but mostly, hundreds of hours into the box, was all for naught.